Truck side frame and journal-box



J. A. LAMONT.

TRUCK SIDE FRAME AND JOURNAL BOX.

APPLICATION FILED AUG.2I, I920.

Patented June 21, 1921 2 SHEETS-SHEET I.

J. A. LAMONT.

TRUCK SIDE FRAME AND JOURNAL BOX.

APPLICATION FILED AUG.2!, 1920.

Patented June 21, 1921 2 SHEETSSHEET UNITED stars PATENT OFFICE.

JOHN A. LAMONT, OF CHICAGO, ILLINOIS, ASSIGNOR T0 AMERICAN STEEL FOUN- DRIES, OF CHICAGO, ILLINOZS, A CORPORATION OF NEW JERSEY.

TRUCK SIDE FRAME AEQ'D JOURNAL-BOX.

Specification of Letters Patent.

Patented June 21, 1921.

Original application filed August 1, 1919, Serial Ho. 315,125, new Patent No. 1,355,344, dated October 12,

1920. Divided and this application filed August 21, 1920.

Y '0 all whom it may concern Be it known that 1, JOHN A. LAMONT, a citizen of the United States, residing at Chi cago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Truck Side Frames and Journal-Boxes, of which the following is a specification.

This invention relates to railway truck side frames and journal boxes therefor, and is a division of my application Serial No. 315,125, filed August 4, 1919.

One object of the invention is to improve truck side frame constructions so that the side frame proper and the journal box co operate in an improved and efficient manner, whereby the journal box may be made lighter, stronger and more durable, and whereby the journal, journal. box and associated parts may be assembled readily and taken apart in a simple manner.

Another object is to provide a side frame construction, including the journal box and associated parts, adapted to meet the various requirements for successful commercial operation.

A further object is to provide an proved dust guard arrangement for the journal box which is simple and efficient.

The invention is illustrated on the accompanying sheets of drawings, in which- Figure 1 is a side elevation of a railway truck side frame embodying my invention;

Fig. 2 is a top plan view of the same;

Fig. 3 is a bottom plan view of said side frame;

Fig. 4: is an end elevation; and,

Fig. 5 is a transverse sectional view taken on the line 5-5 of Fig. 1 through the frame at the journal box.

The various novel features of my invention will be apparent from the following description and drawings and will be particularly pointed out in the appended claims.

Referring to the figures of the drawings, it will be noted that I have provided a truck side frame 10 of a truss type, including a tension member 11 and compression member 12, which are joined together at their ends or points of en port.

Each end 0 this frame 10 is provided with a transversely extending opening 13, preferably circular in section, said openings 13 each being for the reception of a journal Serial No. 405,038.

box. The journal box 14 here shown is made of sheet metal instead of malleable iron or cast steel, which has been the practice heretofore. Furthermore, this journal box preferably is cylindrical in form and occupies the circular opening 13 as distin- 6 guished from the old type of vertical opening in which the journal box is vertically slidably mounted.

The journal receiving portion 13 has an opening 15 which is large enough to permit 6 the passage of the axle journal 16, but which is too small to permit the passage of the journal box 14-. Accordingly, the journal box is applied to its receiving portion and removed therefrom by a lateral movement 7 with respect to the side frame in a manner to be referred to hereinafter.

The journal box is provided with a journal brass 17, which is of the standard design. Mounted over this brass is a wedge 7 18, which differs from the standard wedge in that its upper surface is curved to conform to the inside radius of the box 1 1, said wedge also having a lug 19 which extends vertically through an opening 20 in the top 8 of the box 14: and occupies a corresponding pocket 21 in the side frame to prevent relative rotative movement of said side frame and journal box and also relative transverse movement. 8

The box is provided with a longitudinally extending rib 22 which occupies a correspondingly transversely arranged groove 23 in the side frame, and is also provided with a circular rib'2 i which is located adjacent .the 9 side frame at the outer side thereof. These ribs primarily are strengthening ribs, but also are arranged to improve the fitting of the box in the frame.

As is appreciated, the journal box 14: 9 serves primarily as a container for oil and waste, as a dust protector for the journal, and may be made of relatively light material, in view of the fact that it is subjected to practically no stresses. That portion of 1 the side frame surrounding the box is independent of all stresses originating in other parts of the frame proper due to a vertical load.

The inner end of the box is provided with 1 a dust-proof arrangement, including a dust guard 25, which preferably has an annular portion closely fitting the axle 26, a vertical flange of said guard fitting closely to the external edge of the inside end of the journal box. A dust guard cover 27 is mounted over the dust guard and fits over the inner end of the ournal box 14 in a cap-like manner. In order to provide clearance at the top to allow for brass and journal wear and also for jacking up the truck when the brasses are removed, it is essential that portions 28 of the cover 27 immediately surrounding the dust guard should extend beyond the outside of the box. Accordingly, the dust guard cover 27 must be removed before the journal box 14L is drawn laterally out of the journal box receiving portion and away from the side frame. The journal box is provided with a spring-pressed hinged door 29 for the usual purposes.

To remove the journal box, the axles and the wheels, the side frame is jacked up sufficiently to free the journal brass 17 andwedge 18. The dust guard cover is then pushed off of the journal box and the latter is drawn outwardly and laterally with respect to the side frame until the box is free from said side frame. This box is applied to and removed from the side frame with little efiort,

in view of the fact that the box may be a sixteenth of an inch less in outside diameter than the inside diameter of its frame opening. It will be understood that this clearance will all be under the bottom of the box when the wedge and brass are in place, and

the weight of the frame bears on the j ournal. After the journal box 14 is removed, the side frame is then jacked up an additional amount to permit the passage of the journal outwardly through the opening 15. In assembling the parts the reverse operation is followed. a

If desired, the journal box'may be modified in form to take a standard wedge, in which case any suitable means of attaching the box to the frame may be used. 7 V

It my intention to cover all modifications of the invention falling within the spirit and scope of-the following claims.

I claim: 7 1. A truck side framehaving a receiving portion for ajournal box, a journal box mounted in said receiving portion, a dust guard mounted exteriorly with respect to' said box, and a dust guard cover for retain- -ing said dust guard in position and being mounted on saidjournal box in such a manner as to be removed therefrom by contact with the side frame when said box is removed from the frame.

2. In combination, a truck side frame, a

journal box mounted therein, a dust guard adjacent one end of said journal box, and a dust guard cover mounted' 'exteriorly with respect to said journal box and having an enlarged portion to compensate for wear of the journal and journalbrass, said cover being stripped by said side frame from said box as the latter is removed from the frame.

8'. In combination,a truckside frame hav'- ing a receiving portion for a journal box, and a sheet metal journal box mounted in said receiving portion and having transversely and circumferentially extending ribs for strengthening said box and for positioliing thelatter in said side frame. Y

4. In combination, a truck side frame havmg a receiving portion for a journal box,

' and a journal box mounted in said receiving said box in said side frame.

Signed at Chicago, Illinois, 131118 17th day of August, 1920. 7 j JOHN A. LAMONT. 

